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KNOTTBR FOR GRAIN BINDBRS.

No. 525,672. Patented Sept. 4, 1894.

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UNITED STATES PATENT OFFICE.

WILLIAM N. WHITELEY AND WILLIAM BAYLEY, OF SPRINGFIELD, OHIO,

' ASSIGNORS TO SAID WHITELEY.

KNOTTER FOR GRAI'N-BINDERS.

SPECIFICATION forming part of Letters Patent No. 525,672, datedSeptember 4, 1894.

Application filed November 1, 1886. Serial No. 217,679. (No model.)

To all whom it may concern.-

Be it known that we, WILLIAM N. WHITE- LEY and WILLIAM BAYLEY, citizensof the United States, residing at Springfield, in the county of Clarkand State of Ohio, have in-' vented certain new and useful Improvements1n Knotting Mechanism for Grain-Binders; and we hereby declare thefollowing to be such a full, clear, and exact description of theinvention as will enable any. person skilled in the art to which itpertains to construct and use the same, reference being had to theaccompanying drawings, forming'a part of this specification.

Our invention relates to that class of automatic grain bindingharvesters wherein the cut grain is delivered upon an inclined bindingdeck, where it is formed into a gavel and encircled by the binding cordby proper devices, after which the binding cord is auto matically tiedand that surrounding the bundle severed from the remaining cord, and thebundle discharged.

Our invention consists in certain devices and combinations whereby theknot is formed, the cord severed and the knot stripped from the tyingdevice; and is in the nature of an improvement upon the knottingmechanism described in Letters Patent No. 212,420, granted to F. ApplebyFebruary 18, 1879, with the varlous modifications thereof in generaluse.

The new features of our invention are hereinafter fully described andparticularly pointed out by the claims. These several novel features areillustrated in the'drawings hereto attached, in which-- Figure 1, is aside elevation showing the knotter-hook, tyer-wheel, (to. Fig. 2, is anelevation of the opposite side, showing the cord-holder, tucker-finger,their operating cam, &c. Fig. 3, is a plan of the complete knotter. Fig.4., is a plan of the breast-plate, tucker-finger, &c. Fig. 5, is a sideelevation illustrating the swinging arrangement of the knotter-hook, &c.Fig. 6, is a vertical section through the knotter-hook, looking from therear. Fig. 7, is a similar section looking from the side. Fig. 8, is aside elevation of a portion of the frame, showing in vertical section,the arrangement of the tucker-finger shaft, 850. Fig. 9, is a frontelevation of the cord-holding and cord-severing device. Fig. lO, is aside elevation of the toothed segment 'for operating the tucker-fingerand cordholder disk. Fig. 11, is a plan of the toothed segment andtucker-finger gear.

15 to 19 are detail views illustrating the various relative positions ofthe tyer wheel and pinion. i

Similar letters refer to likeparts in the several views. I

In the drawings A, is a casting constituting the breast-plate andknotter frame formed in one piece, having the usual projection A forfixing it to the binder girt X. Formed in the frame A, is the needle-armcase a, within which the needle-arm passes as it encircles the sheafwith the binding cord and lays the latter in place across theknotter-hook. The binder shaft 12, passes througha proper perforation atthe top of the frame in the usual manner and has the tyer-wheel B, fixedto it at one side of the frame A, and an additional cam-wheel C, at theother. Each of these cam-wheels has an ejector arm Z, formed upon it.

The knotter-hook D, is journaled in the.

swinging carrier E, which is pivoted to the frame A, at e, and has anarm for-med upon it carrying the friction roller e which engages a.cam-track formed in the tyer-wheel B, for the purpose of swinging theknotter-hook toward the cord-holder as the former rotates in order tofurnish slack cord for forming the knot and backward to assist instripping the knot from the knotter-hook. This device is shown in detailin Fig. 5.

The pivoted jaw d of the knotter hook is opened and closed by a plungerd working vertically through the knotter-hook stem and connected to thepivoted jaw 01 by a link (1 as shown in Figs. 6 and 7. Pivoted in thetop of the plunger 01 is a friction roller d, which engages the cam 11formed on the hub of the tyer-wheel, and the knotter-hook tongue isopened thereby and closed by the spiral spring d surrounding the plunger(1 and within the knotter-hook stem in the usual manner.

The cord-holder F, and cord-holder disk G, are pivoted to the frame andthe-cord-holder provided with the spring f, in the usual manner. Uponthe same stud on which the cordholder disk G, turns is also pivoted thelever H, upon one end of which is formed, or fixed the cord-severingknife it, while upon the opposite end is pivoted the pawl g, whichrotates the cord-holder disk G. The'lever H, is operated by the toothedsegment J, to which it is connected by the rod j, which is made in twoparts, one screwing into the other as shown in Figs. 1, and 2, for thepurpose of rendering it adjustable as to its length. The cord-holdingand severing device is shown in detail in Fig. 9.

The tucker-finger K, is formed as shown in Figs. 2, 4, and 8, andpivoted upon the pivotbolt is, which is threaded where it passes throughthe lower portion of the frame A, and its upper end reaching the depthof the hole in the upper part of the frame A, as shown in Fig. 8, Thismode of construction is adopted for the purpose of spreading the twobearings of the pivot bolt is, so that the tubular part of the tuckerfinger shall not bind and become immovable by any strain which tends toforce these two bearings together. WVhen properly adjusted thepivot-bolt k, is secured by the pin 70 The tucker-finger is operated bythe toothed segment J, having teeth 3' formed thereon, which engage theteeth k formed on the upper end of the tubular bearing of thetuckerfinger K, as shown in Figs. 10, and 11. Upon the back of thetoothed segment J, is also formed a cam-track or delay rim j whichengages the projection M, and holds the tuckerfinger K, in positionafter it has tucked the cord under the knotter-hook as hereinaf terdescribed. The toothed segment J, has formed upon it a projection j,which carries the friction-roller 7' which engages the camtrack of thecam-wheel O, by which it is actuated.

The cam-wheel 0, shown in detail in Figs. 12, and 13,'is so arrangedthat the throw of the cam is adjustable, a portion 0 of the cam-trackbeing made in a separate piece and held in place by the adjusting bolt0. Formed upon each of the parts are V-shaped teeth 0 fitting eachother, which assist the adjustingbolt 0, in holding the parts in place.By this means the part 0 of the cam-track may be adjusted so as to throwthe tucker-finger K, forward sooner or later in relation to themovements of the needle-arm and knotter-hook in order to properly placethe cord on the latter for tying the knot.

The sheaf-guiding board L, has fixed to it the plate Z, by which it ispivoted to the projections m, n, of the frame, by the bolt 0. By thisarrangement, in the operation of the harvester or in driving pastobstructions, should the sheaf -board L, he accidentallystruck, it willsimply turn out of placenta shown by dotted lines in Fig. 3, and will bethrown back to its proper position by the ejector on the tyer-wheel B,at its next revolution. 1

The operation of our invention is as follows, viz:The parts of theknotter being in the positions shown in Figs. 1, 2, 3, &c., theneedle-arm lVL-advances, carrying the binding=cord across theknotter-hook and over the cord-holder disk as shown in Fig. 5. Thetyer-wheel rotates, in direction of the arrow, carrying with it thecam-wheel O, which not uating the toothed segment J, throws thetucker-finger K, around under the knotterhook, and forcing the bindingcord into the position shown. Thus far the toothedsegment J, has notmoved far enough for the rod 3', to cause any movement of the lever H,but continuing its rotation in direction of the arrow, the delay-rim jengages the projection 10 on the tucker-finger and holds it in theposition shown in Fig. 5, while the segment J, is carried around farenough to cause the rod j, to lift the outer end of the lever B, bywhich the pawl g, rotates the cord-holder disk G, the parts taking thepositions shown in dotted lines in Fig. 9, and the cord being properlygrasped and held as usual. The rotation of the tyer-wheel continuing, indirection of the arrow, the teeth S, thereon engage the teeth of theknotter-hook pinion t, and rotate it in direction of the arrowin Fig. 4.At the same time the incline p, of the tyer-wheel cam-track acts uponthe friction roller e, and the knotter-hook carrier E, swings back tothe position shown by dotted lines in Fig. 5, by which operationsuflicient length of binding-cord is supplied to form the knot. Duringthe rotation of the knotter-hook the cam b, has depressed the plunger (Zand opened the knob ter-hook to grasp the second folds of the cord, andthe knot is formed. In the meantime the cam-track on the cam-wheel 0,acts upon the friction roller of the segment J, bringing it back to theposition shown in Fig. 10, thus returning the tucker-finger to itsoriginal position and at the same time forcing the knife h, up againstthe binding-cord and severing it, these parts then taking the positionshown in Fig. 9. The usual delay-rim formed upon the tyer-wheel toprevent the rotation of the knotter-hook in either direction, exceptwhen acted upon by the teeth provided for that purpose, is cut away at b(Fig. 15) the point upon the tyer-wheel which is now opposite theknotter-hook, by which the latter is al- I lowed to turn slightlybackward as shown at r, Fig. 4, and at D, Fig. 14, the successivepositions of the knotter pinion being shown in Figs. 17, 18, 19 and 15immediately after which ejectors Z, Z, come'in contact with the bundleand force it outward, tending to strip the knot from the knotter-hook,which is still further facilitated and completed by the knotter-hookswinging away from the bundle as it is ejectedthat is, the knotter-hookswings in an opposite direction from the motion of the bundle. This isillustrated in Fig. 14:, in which the bundle is shown in dotted lines,the knotter, with the knot formed on the knotter-hook D. After the knotis stripped from the knotter-hook by the bundle and knotterhook movingin opposite directions, the latter taking the position shown by dottedlines and the cord shown by full lines.

Having thus described the construction, arrangement and, operation ofour invention and pointed out wherein it differs from the usual devicesemployed for similar purposes, and without wishing to be understood asrestricting our claims of invention to any precise form or proportion ofparts, or to any particular devices not essential to the principles ofconstruction and mode of operation herein described,

What we claim as new, and desire to secure by Letters Patent, is-

1. In the knotting mechanism of an automatic grain binder thecombination with the binder shaft, of a pivoted frame swinging in aplane parallel with the line of motion of the needle arm, a rotatingknotter-hook journaled in said frame, gear-teeth and a delay rim carriedby said binder shaft for actuating and controlling the knotter-hook, acam which engages and operates the swinging frame at the proper timescarried by the same shaft, a plunger for operating the knotter jaw, anda second cam on said shaft for depressing the plu nger, substantially asset forth.

2. In the knotting mechanism of an automatic grain binder, having apivoted frame swinging in a plane parallel with the movement of theneedle arm, and a rotating knotting-hook journaled in said frame, thetucker finger K pivoted and adapted to swing under said hook in the samedirection as themovement of the said swinging frame, gearing whichswings the tucker finger in the said direct'ron and in advance of theknotter hook, and delay devices substantially as described whichmaintain the tucker in said position during the tying of the knot,substantially as set forth.

3. In the knotting mechanism of an automatic grain binder, atucker-finger pivoted upon a stationary shaft supported at each end insuitable bearings in the knotting frame, the said bearings beingprevented from closing together and impeding the free working of thetucker-finger, by means of acup shaped bearing into which the upper endof the shaft is forced by the lower end of the shaft being threaded andpassing through a threaded hole at the lower end, the shaft beingprevented from turning after it is once adjusted, by a pin passingthrough the lower bearing and shaft, substantially as shown anddescribed, and for the purposes set forth.

4'. In the knotting mechanism of an automatic grain binder, a knottingframe, breastplate and binder arm shield above the breast plate, formedof a single piece of cast metal and supporting the knot-tying mechanism,wherein the knot is formed by a rotating knotter-hook and suitableauxiliary parts,

substantially in the manner and for the purposes shown and described.

5. In an automatic grain binder, a sheafboard for guiding the bundle asit is discharged from the machine, the said board being verticallypivoted to thecframe of the knotting mechanism, and swinging in ahorizontal plane, for the purpose of allowing it to swing out of the waywhen encountering obstructions, substantially in the manner shown anddescribed.

6. In an automatic grain binder, a sheafboard for guiding the bundle asit is discharged from the machine, the said board being so pivoted tothe frame of the knotting mechanism as toswing in a horizontal plane,for the purpose of allowing it to swing out of the way when encounteringobstructions, in combination with an ejector arm so constructed andarranged as to move the said sheaf-board back into its proper positionwhen the next bundle is discharged, substantially in the manner shownand described.

7. The combination with the pivoted tucker finger, and pivoted cordsevering knife, of an oscillating plate geared with the tucker fingerand a rod connecting said plate with the knife, substantially as setforth.

8. The combination with the tucker finger of the teeth la the projection70 and the segment plate J having the teeth j and the rim jsubstantially as set forth. I

9. In the knotting mechanism of an automatic grain binder thecombination with the binder shaft, of a pivoted frame swinging in aplane parallel with the line of motion of the needle arm, a rotatingknotter hook journaled in said frame, gear teeth and a delay rim havinga recess b carried by said binder shaft for actuating and controllingthe knotter hook, a knotter pinion having a delay surface and acam,rwhich engages and operates the said pivoted frame at the propertimes, carried by'the same shaft, substantiall y as set forth. 4

WILLIAM N. WHITELEY. WILLIAM BAYLEY. Witnesses:

OSCAR E. PERRIGO, FRED STATE.

